WO2016012632A1 - Sales de tungsteno (vi) para su uso en el tratamiento de la infertilidad, para favorecer la fertilidad y la reproducción normal en un mamífero hembra no diabético, así como para mejorar la eficacia de las técnicas de reproducción asistida - Google Patents
Sales de tungsteno (vi) para su uso en el tratamiento de la infertilidad, para favorecer la fertilidad y la reproducción normal en un mamífero hembra no diabético, así como para mejorar la eficacia de las técnicas de reproducción asistida Download PDFInfo
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- WO2016012632A1 WO2016012632A1 PCT/ES2014/070586 ES2014070586W WO2016012632A1 WO 2016012632 A1 WO2016012632 A1 WO 2016012632A1 ES 2014070586 W ES2014070586 W ES 2014070586W WO 2016012632 A1 WO2016012632 A1 WO 2016012632A1
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- tungsten
- mammal
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- tungsten salt
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Classifications
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- A—HUMAN NECESSITIES
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- A61K33/00—Medicinal preparations containing inorganic active ingredients
- A61K33/24—Heavy metals; Compounds thereof
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/52—Adding ingredients
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/16—Inorganic salts, minerals or trace elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K33/00—Medicinal preparations containing inorganic active ingredients
- A61K33/24—Heavy metals; Compounds thereof
- A61K33/30—Zinc; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
- A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
- A61P15/08—Drugs for genital or sexual disorders; Contraceptives for gonadal disorders or for enhancing fertility, e.g. inducers of ovulation or of spermatogenesis
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G41/00—Compounds of tungsten
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G41/00—Compounds of tungsten
- C01G41/02—Oxides; Hydroxides
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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Definitions
- Tungsten salts (VI) for use in the treatment of infertility, to promote fertility and normal reproduction in a non-diabetic female mammal, as well as to improve the effectiveness of assisted reproduction techniques DESCRIPTION
- the present invention relates to tungsten salts (VI) and compositions containing them, for use in the treatment of infertility, to promote fertility and normal reproduction in a non-diabetic female mammal, as well as to improve the efficacy of an assisted reproduction technique applied to a mammal.
- VI tungsten salts
- Fertility in mammals is a multi-stage process that naturally is not totally efficient. Factors such as age, eating habits or lifestyle, among others, modulate the success of this process. Thus, it is known, for example, that the pregnancy rate in women aged 20 to 24 is approximately 86%, while in women aged 35 to 32, up to 50% decline [Management of the Infertile Woman for h elen A. Thistle; The Fertility Sourcebook by M. Sara Rosenthal, ASAS Summary of FAIR 2012]. Other factors, such as being overweight or underweight, are also responsible for delays in achieving a pregnancy naturally or even for the impossibility of achieving it [Fertile Steril 2013; 100: 631-7].
- infertility causes of infertility among women include ovulatonic dysfunctions, reproductive tract pathologies, reduction in oocyte quality and follicular depletion inherent in aging.
- infertility also called idiopathic infertility, of which one of the possible causes is related to deficiencies in the implementation process.
- Follicular development, ovulation, migration of the immature ovum (oocyte), as well as the subsequent conception and implantation of the zygote in the uterine wall is regulated by hormonal secretions of certain endocrine organs such as the pituitary gland, the hypothalamus and the gland thyroid.
- hormone secretions of certain endocrine organs such as the pituitary gland, the hypothalamus and the gland thyroid.
- endocrine organs such as the pituitary gland, the hypothalamus and the gland thyroid.
- Different treatments for female infertility are known among which are the administration of medications to treat hormonal problems. which involve alterations of ovulation, such as, for example, clomiphene citrate or gonadotropins.
- vitamin supplements especially vitamin B, vitamin C, vitamin E and folic acid, mineral supplements such as salts or complexes of iron, zinc, or selenium, essential fatty acids ( omega 3), as well as plant extracts such as Chasteberry (Vitex agnus chastus), Damiana, licorice, Red Clover flower, Agnocasto Berry, Black Cohosh, Dong Quai (Angelica sinensis), Yam or Sweet Potato (Dioscorea villosa), False Unicorn Root, green tea, Nettles (Urtica dioica), Wild Oats (Avena sativa), Dandelion (Taraxacum officinale), etc. although for none of these treatments its effectiveness has been clearly demonstrated.
- mineral supplements such as salts or complexes of iron, zinc, or selenium, essential fatty acids ( omega 3), as well as plant extracts such as Chasteberry (Vitex agnus chastus), Damiana, licor
- Tungsten is found in trace amounts in animals and plants. For example, in plants, contents up to a maximum of 100 mg / kg have been described [Gbaruko B. C. &
- tungsten salt VI
- a tungsten salt or a solvate of said salt is effective in treating infertility in a non-diabetic female mammal, to promote fertility and normal reproduction in a non-diabetic female mammal, and to increase the effectiveness of assisted reproduction techniques applied to a mammal.
- sodium tungstate can partially reverse alterations in reproductive function in diabetic female mice because it produces a normalization of blood glucose levels
- sodium tungstate can have an effect on the function of the female reproductive system in non-diabetic female mammals, presenting itself as a treatment for infertility and / or favoring fertility and normal reproduction in non-diabetic female mammals.
- a first aspect of the present invention relates to a tungsten salt (VI) or a solvate thereof, for use in the treatment of infertility in a non-diabetic female mammal, or to promote fertility and normal reproduction in a non-diabetic female mammal.
- VI tungsten salt
- a second aspect of the present invention relates to a composition
- a composition comprising a tungsten salt (VI) or a solvate thereof in a concentration greater than 100 mg / kg, as well as at least one pharmaceutically or dietetically acceptable excipient or carrier, for the treatment of infertility in a female mammal not diabetic or to promote fertility and normal reproduction in a non-diabetic female mammal.
- VI tungsten salt
- a third aspect of the invention relates to the use of a tungsten salt (VI) or a solvate thereof, as defined above, for the preparation of a medicament for the treatment of infertility in a non-diabetic female mammal or for promote fertility in a non-diabetic female mammal.
- VI tungsten salt
- a fourth aspect of the invention relates to a method of infertility treatment or to promote fertility and normal reproduction in a non-diabetic female mammal, which comprises the administration of a therapeutically effective amount of a tungsten (VI) salt or a solvate thereof, as defined above.
- the present invention relates to a tungsten salt (VI) or a solvate thereof, for the treatment of infertility in a non-diabetic female mammal or to favor and / or Contribute to normal fertility and reproduction in a non-diabetic female mammal.
- VI tungsten salt
- promote fertility and normal reproduction or “contribute to fertility and normal reproduction” refers to a contribution to normal fertility and reproduction, or improve fertility and normal reproduction (reducing the time to achieve pregnancy ), meaning "normal fertility and reproduction” a state of fertility in which it is achieved, following the definitions provided previously:
- an infertility situation a pregnancy after a period of 12 months of regular and unprotected sex. This includes the need to restore and / or enhance ovulation, improve the quality of the oocyte and the embryo, increase the implantation of the zygote in the uterine wall, regulate an alteration of the hypothalamic-pituitary-ovarian axis, including polycystic ovary syndrome, metabolic syndrome, hyperprolactinemia, endometriosis, hypothyroidism, multiple sclerosis, arthritis rheumatoid, lupus erythematosus, cirrhosis, rheumatoid arthritis, celiac disease, chronic renal failure, idiopathic causes and eating disorders, such as anorexia nervosa and bulimia.
- polycystic ovary syndrome including polycystic ovary syndrome, metabolic syndrome, hyperprolactinemia, endometriosis, hypothyroidism, multiple
- assisted reproduction technique in the context of the present invention encompasses any technique of assisted reproduction or artificial fertilization, being understood as the set of biomedical techniques or methods, which facilitate or replace at least one of the natural processes that are They give during playback. They include, but are not limited to, ovulation induction, artificial insemination (including donor sperm insemination) and in vitro fertilization (including donor egg fertilization or donor sperm fertilization).
- the assisted reproduction technique can be applied due to causes of infertility or reduced fertility, both of the female mammal (such as those defined above) and of the male mammal (e.g., sperm alterations, reflected in a seminogram, such as alterations of sperm motility, alterations of their vitality, as well as alterations in their morphology).
- causes of infertility or reduced fertility both of the female mammal (such as those defined above) and of the male mammal (e.g., sperm alterations, reflected in a seminogram, such as alterations of sperm motility, alterations of their vitality, as well as alterations in their morphology).
- the assisted reproduction technique can also be applied to women who, despite not having any fertility problems per se, have to resort to them for various reasons, for example (but not limited to), women without partners who require sperm donation , couples who have to resort to the donation of eggs and / or sperm for genetic or other incompatibilities, or breeding animals that require embryo transfer in search of productivity improvements
- these assisted reproduction techniques have a rate of reduced success, less than 50%, or even 40%. This is because the use of assisted reproduction techniques has an inherent decrease in the efficiency of the reproductive process.
- One of the main causes of this low efficiency of reproduction with the use of assisted reproduction techniques is related to difficulties in the process of adhesion and embryonic implantation.
- the term "improve” in the expression “improve the efficiency of an assisted reproduction technique” refers to increasing the success rate of such assisted reproduction techniques.
- the success rate is 43%, according to previous statistics, a higher rate, from 44% , would mean an improvement in the effectiveness of such a technique.
- This improvement is mainly due to a favor of embryonic adhesion and implantation due to the administration of tungsten salts (VI).
- tungsten salts (VI) will be carried out at least to the female mammal.
- both the female mammal and the male mammal can be administered tungsten (VI) salts.
- the mammal within the framework of the present invention can be any mammal, including, but not limited to, humans, mice, rats, rabbits, dogs, cats, guinea pigs, hamsters, cows, horses, pigs, sheep, goats, etc. According to a particular embodiment, the mammal is human.
- the administration of said salt is carried out in a daily dose between 0.001 mg and 1000 mg of tungsten salt (VI) per kg of body weight of the female mammal.
- the tungsten salt (VI) comprises a tungsten anion (VI) and a pharmaceutically or veterinarily acceptable cation.
- “Pharmaceutically or veterinarily acceptable cation” refers to any acceptable non-toxic organic or inorganic cation, which is capable of forming a therapeutically effective tungsten (VI) salt and is suitable for use in pharmaceutical or veterinary therapy.
- the cation is an alkaline or alkaline earth cation. More preferably, the cation is selected from the group consisting of sodium, potassium, magnesium, calcium and zinc. According to a particular embodiment, the cation is sodium. According to another particular embodiment, the cation is zinc.
- the tungsten anion (VI) is selected from the ions W0 2 ⁇ , HW0 " , W 2 0 7 2 ⁇ and HW 2 0 7 ⁇ .
- the anion is W0 2" .
- the solvate of the tungsten salt (VI) is a hydrate, more preferably the dihydrate.
- the solvate of the tungsten salt (VI) is the dihydrate and the cation is a sodium cation.
- the remaining possible combinations are also intended to be included within the scope of the present invention.
- a further aspect of the invention is a composition
- a composition comprising a tungsten salt (VI) or a solvate thereof as defined above, in a concentration equal to or greater than 100 mg / kg and at least one pharmaceutically excipient or carrier, veterinarily or dietically acceptable, for the treatment of infertility in a non-diabetic female mammal, to promote fertility and normal reproduction in a non-diabetic female mammal, or to increase the efficacy of an assisted reproduction technique applied to a mammal.
- VI tungsten salt
- excipients or vehicles suitable for use in pharmaceutical, veterinary or food technologies, for the preparation of the compositions. These components, excipients or carriers, must be compatible with the other ingredients of the composition. It should also be suitable for use in contact with the tissue or organ of humans and animals without excessive toxicity, irritation, allergic response or other immunogenicity problems or complications at a reasonable benefit / risk ratio. They are substances that, at the concentrations present in a pharmaceutical form, lack pharmacological activity.
- the excipients or vehicles are used in order to provide the pharmaceutical or veterinary form with characteristics that ensure the stability, bioavailability, acceptability and ease of administration of one or more active ingredients.
- excipients affect the release of the active substance, they may modify the magnitude and temporal profile of the pharmacological activity of the drug product, through changes in its bioavailability.
- the excipients also serve to give adequate form or consistency to a preparation. Examples of types of excipients: solubilizers, disintegrants or disintegrants, emulsifiers (emulsifiers), colorants, flavors, binders, antioxidants, lubricants, preservatives, thickeners, etc.
- the excipient or vehicle is pharmaceutically or veterinarily acceptable
- the composition is a pharmaceutical composition for the treatment of infertility in a non-diabetic female mammal or to increase the efficacy of an assisted reproduction treatment applied to a mammal.
- the pharmaceutical composition is in the form of a pill, tablet, tablet, capsule, powder, wafer, powder or effervescent tablets, solution, suspension, syrup or granules.
- the composition is a food composition to promote fertility and normal reproduction in a non-diabetic female mammal.
- the food composition may be a liquid or beverage composition, a solid composition or a nutritional supplement or supplement (also called a dietary or nutritional supplement).
- the term "food composition” would encompass any food, solid or liquid, enriched with tungsten salt (VI), as well as any nutritional supplement or supplement containing at least one tungsten salt (VI).
- the food composition can be a liquid composition, that is, a beverage according to terms more generally used in society.
- Such liquid composition within the framework of the present invention, includes, but is not limited to, any beverage selected from the group consisting of milk of animal or vegetable origin, as well as any derivative thereof, such as, for example, shakes, yogurt , kefir, etc.
- the food composition can also be a solid composition.
- a solid composition may be selected, but not limited to, from the group consisting of milk derivatives of animal or vegetable origin, such as cheese, butter, margarine and tofu; any type of bread, including fresh, packaged or frozen, of mold, integral, spicy, sweet, salty, etc; pasta prepared from any cereal flour, such as wheat or semolina (macaroni, spaghetti, noodles, etc); bakery products, including biscuits, cookies, muffins, donuts, etc.
- infusions, tea or coffee, in bulk or in sachets, to prepare drinks jellies, candies, including rubber, better known as “jelly beans”; as well as any type of solid seasoning, for example oregano, salt, coriander, parsley, basil, etc., or mixtures thereof.
- the food composition can also be a nutritional, dietary or nutritional supplement or supplement, any of these terms being used in the context of the present invention.
- These terms are commonly used for compositions consumed orally, which contain an ingredient intended to supplement the diet, in the case of the present invention the tungsten salt (s) (VI). They will never be a substitute for a conventional food or a single component of a meal or diet. They can be given in different presentations, such as pills, pills, tablets, capsules, soft gelatin capsules, gelatin capsules, wafers, effervescent tablets, liquids (solution, suspension, syrup), granules and powders, all of which are included as particular embodiments in the scope of the present invention. Dietary- or pharmaceutically acceptable excipients are apparent to the expert for obtaining any of the above presentations, and are intended to be included within the scope of the present invention.
- any of the above compositions comprises in its composition at least one nutritive sweetener, such as sucrose or fructose.
- a nutritive sweetener such as sucrose or fructose.
- the intake of these nutritive sweeteners should be controlled and limited in diabetic patients, therefore a food composition that includes such a nutritive sweetener would be contraindicated in diabetic mammals or at least should be taken into account during the control of their diet.
- the non-diabetic female mammal is selected from the group consisting of female mammals that need to restore and / or enhance ovulation, improve oocyte and embryo quality, increase zygote implantation in the uterine wall, regulate an alteration of the hypothalamic axis - hypophyse o-ovahco, including polycystic ovary syndrome, metabolic syndrome, hyperprolactinemia, endomethosis, hypothyroidism, multiple sclerosis, rheumatoid arthritis, lupus ehthematosus, cirrhosis, rheumatoid arthritis, celiac disease, chronic renal failure, idiopathic causes eating disorders, such as anorexia nervosa and bulimia.
- the non-diabetic female mammal is selected from the group consisting of female mammals that have insulin resistance (also known as insulin resistance or insulin resistance); Insulin resistance, when presented together with hyperglycemia, can lead to the development of diabetes, however insulin resistance alone does not lead to a diabetic state.
- insulin resistance also known as insulin resistance or insulin resistance
- female mammals that have insulin resistance are selected from the group consisting of female mammals that have one or more of the following conditions: Obesity or overweight, Metabolic syndrome, Prediabetes, Polycystic ovary syndrome, Hypertension, Coronary heart disease, Hyperlipidemia or dyslipidemia, Hyperthyroidism, Hyperparathyroidism, Hyperleptinemia or leptin resistance, Sedentary, Eating disorders, Obstructive sleep apnea syndrome, Fetal malnutrition, Prader Willi syndrome, Rabson-Mendenhall syndrome, Liver steatosis, Leprechaunism, Pathologies associated with excess secretion glucocorticoids (eg acromegaly), insulin resistance caused by pharmacological treatments (eg glucocorticoids, thiazide diuretics, beta blockers), Stress or Early Menarche [Egas Béjar, Daniela et.al Insulinorresistencia / Insulin resistance.
- glucocorticoids eg acro
- the salt or salts of tungsten (VI) or a solvate thereof are present in a concentration of at least 100 mg / kg.
- the tungsten (VI) salt or salts are comprised in the composition in concentrations of at least 150 mg / kg, at least 200 mg / kg, at least 250 mg / kg, at least 300 mg / kg , at least 350 mg / kg, at least 400 mg / kg, at least 450 mg / kg, at least 500 mg / kg, at least 550 mg / kg, at least 600 mg / kg, at least 650 mg / kg, at least 700 mg / kg, at least 750 mg / kg, at least 800 mg / kg, at least 850 mg / kg, at least 900 mg / kg or at least 850 mg / kg.
- the total concentration of tungsten salts (VI) is equal to or less than 1000 mg / kg.
- the food composition will be suitable for the administration of tungsten salts in a daily dose of between 0.001 mg per kg body weight of the female mammal (hereinafter, mg / kg / day) and the maximum dose tolerated for the corresponding female mammal species.
- the maximum daily dose will be 1000 mg / kg / day; according to additional particular embodiments, administration would be carried out in doses of at least 0.001 mg / kg / day, of at least 0.01 mg / kg / day, of at least 0.1 mg / kg / day, of at least 0.5 mg / kg / day, at least 1 mg / kg / day, at least 10 mg / kg / day, at least 25 mg / kg / day, at least 50 mg / kg / day, of at least 100 mg / kg / day, at least 200 mg / kg / day, at least 300 mg / kg / day, at least 400 mg / kg / day, at least 500 mg / kg / day, of at least 600 mg / kg / day, at least 700 mg / kg / day, at least 800 mg / kg / day or at least 900 mg / kg / day.
- a third aspect of the invention relates to the use of a tungsten salt (VI) or a solvate thereof, as defined above, for the preparation of a medicament for the treatment of infertility in a non-diabetic female mammal or for promote fertility in a non-diabetic female mammal.
- a fourth aspect of the invention relates to a method of infertility treatment or to promote fertility and normal reproduction in a non-diabetic female mammal, which comprises the administration of a therapeutically effective amount of a tungsten (VI) salt or a solvate thereof, as defined above.
- the tungsten salt (VI) will comprise a tungsten anion (VI) and a dietary or pharmaceutically acceptable cation, which preferably will be an alkaline or alkaline earth cation, even more preferably a sodium, potassium, magnesium and calcium cation. and zinc Particularly, the salt will be tungsten sodium (VI).
- the tungsten anion (VI) is selected from the ions W0 4 2 ⁇ , HW0 4 " , W 2 0 7 2" and HW2O7 " , preferably W0 4 2" , and in the case of a solvate , it will preferably be the hydrate, more specifically the dihydrate.
- EXAMPLE 1 DESCRIPTION OF THE ANIMAL MODEL (IRS2 FEMALE MOUSES - / -)
- the mouse model used to determine the activity of tungsten salts (VI) to promote normal fertility and reproduction is the mouse IRS2 "A , a knock-out of the gene Irs2 [Burks et al., "IRS-2 pathways integrate female reproduction and energy homeostasis", Nature, 2000, vol. 407, pp. 377-382].
- the deletion of the Irs2 gene translates into a clear sexual dimorphism in relation to fertility and carbohydrate metabolism.
- IRS2 - / - female mice are between 6 and 8 weeks old.
- Burks et al. "IRS-2 pathways integrate female reproduction and energy homeostasis", Nature, 2000, vol. 407, pp. 377-382, it is described that, while male IRS2 - / - mice were already strongly glucose intolerant at the age of 6 weeks, female IRS2 - / - maintained baseline glucose levels in the range of 120-160 mg / dl until 4-5 months old (page 378, first column, end of second paragraph). Additionally, the same publication describes that female mice less than 10 weeks old are relatively euglycemic and slightly insulin-resistant.
- IRS2 has critical and direct functions in the ovary, particularly in follicular development and ovulation, by regulating key components of the cell cycle mechanism, involved in the coordination of proliferation and differentiation. cell, clearly and directly relating the absence of IRS2 expression with infertility [Biology of Reproduction 2007, 76, 1045-1053].
- the IRS2 - / - animal model is primarily a beta cell failure model [Am J Physiol Endocrinol Metab 2014, 306, E36-E47)]. It is described that the progressive loss of beta cells due to the increased number of apoptotic beta cells, determines the progression towards diabetes in this animal model (see page E36, second column, second paragraph), only at high ages. The gradual reduction of beta cells is initially compensated by increased activity of the cells that persist, and only at advanced ages, the decrease in cell numbers cannot be compensated by persistent cells, leading to the appearance of hyperglycemia and the subsequent development of diabetes
- Fertility is a complex mechanism that involves numerous factors. There is no "ideal" animal model, but there are numerous animal models, for example those marketed by Jackson Laboratories (http://jaxmice.jax.org/list/ra861 .html).
- leptin An important factor that influences fertility is the hormone leptin, which is necessary for both male and female fertility. Ovulation cycles in females they are affected by it, and leptin levels outside the ideal range can have a negative effect on the quality of the ovules. IRS2 - / - mice have elevated circulating leptin levels, which is probably another factor that influences fertility.
- this animal model encompasses a number of important factors related to infertility and as such is a suitable model to study the efficacy of compounds in female mammal infertility.
- mice 6 male wild-type mice ( ⁇ 82 TM *) aged between 6 and 8 weeks.
- Female and male mice were housed separately under normal conditions, ie 12h light / dark cycle and controlled temperature and humidity. The animals were fed at will (also called ad libitum) with a standard feed diet.
- mice After an acclimatization period, the female IRS2 "" mice were housed in groups of 4-6 mice / cage. During the pre-treatment phase (2 weeks), animals were given drinking water without tungstate salt.
- Sodium tungstate was administered in drinking water (ad libitum) by a solution of 2 mg / ml of sodium tungstate dihydrate (marketed by Cario Erba) in distilled water after the pre-treatment phase (day 0 of treatment) and until 4 weeks before the animals are slaughtered.
- the daily dose of sodium tungstate ingested by the mice was approximately 180 mg / kg body weight.
- vaginal smears were performed on 6 female mice chosen at random on days -8; -5; -2; -one ; 7; 8; 14; 15 and 22, to determine the phase of the estrous cycle in which they were.
- the vaginal exudate was collected with the same pipette and spread on a slide. Once air dried, it was fixed and stained with the Pap smear.
- the Pap smear technique involves staining the vaginal smears fixed on the slide as follows:
- Preparations were analyzed by trained personnel and using simple blind blind coding to eliminate observer bias.
- the samples were identified in the following phases: right, proestrus, estrus, metaestrus, anestrus or not evaluable.
- the cyclicity of the four phases in periods of 4 to 6 days, are indicators of a normal estrous cycle, while the absence of this cyclicity and persistence in anestrus, right or proestro phases are indicators of the absence of the estrous cycle.
- Table 1 summarizes the stages of the estrous cycle of vaginal smears performed on 6 of these female IRS2 "A mice.
- the phases of the estrous cycle are the following: A: Anestro; D: right handed; P: Proestro; E: Estro; and M: metaestro.
- the phases of the estrous cycle found in the vaginal smears of the female IRS2 "A mice in Table 1 show that during the pre-treatment period all the mice were in the proestro (P) or right-handed (D) phase, that is, in absence of estrous cycle.
- Table 2 summarizes the age at the time of treatment, if there was pregnancy and the number of embryos per female.
- Table 2 show that while the pregnancy rate of female IRS2 "" untreated mice is 9%, the pregnancy rate of female IRS2 "A mice treated with tungstate is increased to 80%. In addition, these results also show that the average number of pups / embryos implanted by a female pregnancy mouse is approximately 5, a number that can be considered comparable to the number of pups of a female mouse. Thus, the results of Tables 1 and 2 demonstrate that a tungsten salt (VI) is an effective treatment for ovulation recovery and / or increased oocyte implantation. Thus, the administration of a tungsten (VI) salt as defined in the present invention is effective for the treatment of infertility in non-diabetic female mammals.
- mice Female mice were housed in normal conditions, ie 12h light / dark cycle and controlled temperature and humidity. The animals were fed at will (also called ad libitum) with a standard feed diet.
- the sodium tungstate was administered in the drinking water (ad libitum) by means of a solution of 2 mg / ml of sodium tungstate dihydrate (marketed by Cario Erba) in distilled water after the pre-treatment phase (day 0 treatment) and for 12 days.
- a tungsten salt (VI) is an effective treatment for ovulation recovery and / or increased oocyte implantation, independently of changes in body weight and Changes in carbohydrate metabolism.
- the invention or a composition containing such a tungsten salt (VI) has a direct effect on the female reproductive system and is therefore effective in promoting fertility and normal reproduction in non-diabetic female mammals.
- a human-human embryonic adhesion model was used "in vitro", composed of the HEC1-A endometrial cell line and the JEG-3 human trophoectoderm cell line.
- the JEG-3 line a cell line that simulates the trophoectoderm cells of a human embryo, are cells that grow in monolayer in the laboratory, using low adhesion plaques, are capable of forming spheroids that simulate the human embryo; This is one of the most used cell lines to perform embryonic adhesion assays in vitro.
- HEC1-A cells were planted in 24-well plates and cultured with McCoy 5A culture medium, supplemented with 10% fetal bovine serum and 0.1% antibiotics
- JEG-3 cells were planted on low adhesive plates with 'Eagle's minimal essential medium' (EMEM) culture medium, supplemented with 10% fetal bovine serum and 0.1% antibiotics (fungizone and penicillin). 24 hours before the adhesion test, the formation of JEG-3 trophoblastic spheroids was carried out from this culture. To do this, JEG-3 cells were suspended in an Erlenmeyer while stirring in the medium previously described at a concentration of 6x10 5 cells / 6ml. The resulting spheroids were collected for the adhesion test.
- EMEM 'Eagle's minimal essential medium'
- Trophoectoderm spheroids were added on the monolayer of HEC-1A cells, placing 6 to 10 spheroids per well. Spheroid adhesion was measured at
- a salad dressing enriched with a tungsten salt is prepared.
- a quantity of 25 mg of Na 2 WO4 (100 mg / kg) is added to 250 g of a commercially available dressing and stirred mechanically for 30 minutes.
- a ketchup sauce is prepared, enriched with a tungsten salt. To this end, 170 mg of Ca WO 4 are added to 200 g of commercially available ketchup and stirred mechanically for 1 h.
- Milk enriched with a tungsten salt is prepared. For this, 1 kg of whole cow's milk is available, 150 mg of ZnWO 4 is added and it is mechanically stirred for 20 minutes. Immediately before consumption it is recommended to shake the container.
- a fruit juice enriched with a tungsten salt is prepared. 500 mg of MgWO 4 is added to 1 kg of commercial juice and stirred mechanically for 10 minutes. Immediately before consumption it is recommended to shake the container.
- Microcrystalline cellulose PH200 (Diluent / slider) 250.00 mg
- Effervescent tablets with the following composition are prepared:
- Gelatin capsules are prepared with the following composition:
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Priority Applications (28)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ728467A NZ728467B2 (en) | 2014-07-21 | Tungsten (vi) salts used to treat infertility, for stimulating fertility and normal reproduction in a non-diabetic female mammal, and for improving the effectiveness of assisted reproduction techniques | |
ES14898173T ES2940465T3 (es) | 2014-07-21 | 2014-07-21 | Sales de tungsteno (VI) para estimular la fertilidad y la reproducción y para mejorar la eficacia de las técnicas de reproducción asistida |
AU2014401750A AU2014401750B2 (en) | 2014-07-21 | 2014-07-21 | Tungsten (VI) salts used to treat infertility, for stimulating fertility and normal reproduction in a non-diabetic female mammal, and for improving the effectiveness of assisted reproduction techniques |
SG11201700485VA SG11201700485VA (en) | 2014-07-21 | 2014-07-21 | Tungsten (vi) salts used to treat infertility, for stimulating fertility and normal reproduction in a non-diabetic female mammal, and for improving the effectiveness of assisted reproduction techniques |
RS20230179A RS64025B1 (sr) | 2014-07-21 | 2014-07-21 | Soli volframa (vi) za stimulaciju plodnosti i reprodukcije i za poboljšanje efikasnosti tehnika potpomognute reprodukcije |
KR1020177004653A KR102282865B1 (ko) | 2014-07-21 | 2014-07-21 | 비당뇨병 암컷 포유류에서 불임 치료를 위해, 수정 및 정상 생식을 자극하기 위해, 및 보조 생식 기술의 효과를 개선하기 위해 사용되는 텅스텐(vi) 염 |
PL14898173.1T PL3173382T3 (pl) | 2014-07-21 | 2014-07-21 | Sole wolframu(vi) do stymulowania płodności i reprodukcji oraz do poprawy skuteczności technik wspomaganego rozrodu |
EP14898173.1A EP3173382B1 (en) | 2014-07-21 | 2014-07-21 | Tungsten (vi) salts for stimulating fertility and reproduction and for improving the effectiveness of assisted reproduction techniques |
JP2017502966A JP6534439B2 (ja) | 2014-07-21 | 2014-07-21 | 非糖尿病の雌性哺乳動物において生殖能力及び正常な妊孕力を刺激するための及び生殖補助医療の有効性を改善させるための、不妊症の治療に使用されるタングステン(vi)塩 |
LTEPPCT/ES2014/070586T LT3173382T (lt) | 2014-07-21 | 2014-07-21 | Volframo (vi) druskos, skirtos vaisingumui ir reprodukcijai skatinti bei pagalbinio apvaisinimo metodų veiksmingumui gerinti |
CN201480082106.9A CN106715332B (zh) | 2014-07-21 | 2014-07-21 | 用于治疗不孕症、促进雌性哺乳动物的正常繁殖和生育力及提高辅助生殖技术功效的钨盐 |
CA2955914A CA2955914C (en) | 2014-07-21 | 2014-07-21 | Tungsten (vi) salts for use thereof in the treatment of infertility, for favoring normal reproduction and fertility in a non-diabetic female mammal, as well as for improving the efficacy of assisted reproductive techniques |
PT148981731T PT3173382T (pt) | 2014-07-21 | 2014-07-21 | Sais de tungsténio (vi) utilizados para tratar infertilidade, para estimular a fertilidade e a reprodução normal num mamífero fêmea não diabético, e para melhorar a eficácia das técnicas de reprodução assistida |
RU2017105257A RU2679623C2 (ru) | 2014-07-21 | 2014-07-21 | Соли вольфрама (vi) для применения в лечении инфертильности, для поддержания нормальной репродуктивной функции и фертильности у недиабетической самки млекопитающего, а также для повышения эффективности вспомогательных репродуктивных технологий |
HUE14898173A HUE061726T2 (hu) | 2014-07-21 | 2014-07-21 | Wolfrám (VI) sók termékenység és reprodukció stimulálására és elõsegített reprodukciós technika hatékonyságának fokozására |
HRP20230223TT HRP20230223T1 (hr) | 2014-07-21 | 2014-07-21 | Soli volframa (vi) za poticanje plodnosti i reprodukcije te za poboljšanje učinkovitosti tehnika potpomognute reprodukcije |
US15/327,292 US10376540B2 (en) | 2014-07-21 | 2014-07-21 | Tungsten (VI) salts used to treat infertility, for stimulating fertility and normal reproduction in a non-diabetic female mammal, and for improving the effectiveness of assisted reproduction techniques |
DK14898173.1T DK3173382T3 (da) | 2014-07-21 | 2014-07-21 | Wolfram(vi)-salte til stimulering af fertilitet og reproduktion og til forbedring af effektiviteten af assisterede reproduktionsteknikker |
FIEP14898173.1T FI3173382T3 (fi) | 2014-07-21 | 2014-07-21 | Volframi(VI)suoloja hedelmällisyyden ja lisääntymiskyvyn stimuloimista ja keinohedelmöitystekniikoiden tehokkuuden parantamista varten |
BR112017001287-1A BR112017001287A2 (pt) | 2014-07-21 | 2014-07-21 | sal de tungstênio, composição, utilização de um sal de tungstênio e método para o tratamento da infertilidade |
MX2017000927A MX2017000927A (es) | 2014-07-21 | 2014-07-21 | Sales de tungsteno (vi) para su uso en el tratamiento de la infertilidad, para favorecer la fertilidad y la reproduccion normal en un mamifero hembra no diabetico, asi como para mejorar la eficacia de las tecnicas de reproduccion asistida. |
PCT/ES2014/070586 WO2016012632A1 (es) | 2014-07-21 | 2014-07-21 | Sales de tungsteno (vi) para su uso en el tratamiento de la infertilidad, para favorecer la fertilidad y la reproducción normal en un mamífero hembra no diabético, así como para mejorar la eficacia de las técnicas de reproducción asistida |
SI201432020T SI3173382T1 (sl) | 2014-07-21 | 2014-07-21 | Volframove (VI) soli za stimuliranje plodnosti in reprodukcije ter za izboljšanje učinkovitosti tehnik asistirane reprodukcije |
ARP150102288A AR101252A1 (es) | 2014-07-21 | 2015-07-20 | Sales de tungsteno (vi) para su uso en el tratamiento de la infertilidad, para favorecer la fertilidad y la reproducción normal en un mamífero hembra no diabético, así como para mejorar la eficacia de las técnicas de reproducción asistida |
UY0001036222A UY36222A (es) | 2014-07-21 | 2015-07-20 | Sales de tungsteno (VI) para su uso en el tratamiento de la infertilidad, para favorecer la fertilidad y la reproducción normal en un mamífero hembra no diabético, así como para mejorar la eficacia de las técnicas de reproducción asistida. |
TW104123580A TWI709407B (zh) | 2014-07-21 | 2015-07-21 | 用於治療不孕症、有利於非糖尿病雌性哺乳類之正常生殖及生育力及促進輔助性生殖技術之功效之鎢(vi)鹽 |
IL250212A IL250212B (en) | 2014-07-21 | 2017-01-22 | Tungsten salts (vi) for use in the treatment of infertility, to favor normal fertility and reproduction in the female of non-diabetic mammals, as well as to improve the efficiency of assisted reproduction techniques |
ZA2017/01241A ZA201701241B (en) | 2014-07-21 | 2017-02-20 | Tungsten (vi) salts used to treat infertility, for stimulating fertility and normal reproduction in a non-diabetic female mammal, and for improving the effectiveness of assisted reproduction techniques |
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PCT/ES2014/070586 WO2016012632A1 (es) | 2014-07-21 | 2014-07-21 | Sales de tungsteno (vi) para su uso en el tratamiento de la infertilidad, para favorecer la fertilidad y la reproducción normal en un mamífero hembra no diabético, así como para mejorar la eficacia de las técnicas de reproducción asistida |
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WO2016012632A9 WO2016012632A9 (es) | 2017-05-18 |
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EP (1) | EP3173382B1 (es) |
JP (1) | JP6534439B2 (es) |
KR (1) | KR102282865B1 (es) |
CN (1) | CN106715332B (es) |
AR (1) | AR101252A1 (es) |
AU (1) | AU2014401750B2 (es) |
BR (1) | BR112017001287A2 (es) |
CA (1) | CA2955914C (es) |
DK (1) | DK3173382T3 (es) |
ES (1) | ES2940465T3 (es) |
FI (1) | FI3173382T3 (es) |
HR (1) | HRP20230223T1 (es) |
HU (1) | HUE061726T2 (es) |
IL (1) | IL250212B (es) |
LT (1) | LT3173382T (es) |
MX (1) | MX2017000927A (es) |
PL (1) | PL3173382T3 (es) |
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RU (1) | RU2679623C2 (es) |
SG (1) | SG11201700485VA (es) |
SI (1) | SI3173382T1 (es) |
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UY (1) | UY36222A (es) |
WO (1) | WO2016012632A1 (es) |
ZA (1) | ZA201701241B (es) |
Cited By (1)
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EP4368577A1 (en) | 2022-11-08 | 2024-05-15 | Oxolife, S.L. | Process for the preparation of tungsten (vi) salt hydrates |
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ES2108642A1 (es) * | 1995-07-26 | 1997-12-16 | Quimica Farm Bayer Sa | Composiciones de tungsteno (vi) para el tratamiento oral de la diabetes mellitus. |
ES2275873T3 (es) * | 2001-05-16 | 2007-06-16 | Quimica Farmaceutica Bayer, S.A. | Composiciones orales para el tratamiento de mamiferos obesos y no diabeticos incluyendo humanos. |
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RU2202314C2 (ru) * | 2001-04-11 | 2003-04-20 | Алексей Иванович Ступко | Способ подготовки пациентки к искусственному оплодотворению |
WO2004030687A1 (en) * | 2002-10-02 | 2004-04-15 | Yeda Research And Development Co. Ltd. | Long-acting gonadotropin-releasing hormone analogs and methods of use thereof |
EP1523985B1 (en) * | 2003-10-17 | 2010-03-10 | Oy Neurofood Ab | Non-radioactive strontium agent for treating cancer |
US7700280B2 (en) * | 2003-12-31 | 2010-04-20 | The Penn State Research Foundation | Methods for assessing cisplatin resistance, disease progression, and treatment efficacy in ovarian cancer |
WO2007003007A1 (en) * | 2005-07-05 | 2007-01-11 | Adelaide Fertility Centre Pty Ltd | Methods and compositions for improving pregnancy outcome |
US20060100154A1 (en) * | 2005-10-13 | 2006-05-11 | Yeda Research And Development Co | Long-acting gonadotropin-releasing hormone analogs and methods of use thereof |
EP2086642B1 (en) * | 2006-10-18 | 2014-06-25 | Periness Ltd. | Dnase for the treatment of male sub-fertility |
ES2478790B1 (es) * | 2013-01-22 | 2015-05-06 | Oxolife, S. L. | Uso de sales de tungsteno (VI) para el tratamiento de la infertilidad femenina en mamíferos no diabéticos |
ES2551828B1 (es) * | 2014-05-21 | 2016-09-12 | Oxolife S.L. | Composiciones alimentarias que comprenden sales de tungsteno (VI) |
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- 2014-07-21 ES ES14898173T patent/ES2940465T3/es active Active
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4368577A1 (en) | 2022-11-08 | 2024-05-15 | Oxolife, S.L. | Process for the preparation of tungsten (vi) salt hydrates |
WO2024100101A1 (en) | 2022-11-08 | 2024-05-16 | Oxolife, S.L. | Process for the preparation of tungsten (vi) salt hydrates |
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