US20150157875A1 - Using light to regulate uterine contractions - Google Patents
Using light to regulate uterine contractions Download PDFInfo
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- US20150157875A1 US20150157875A1 US14/623,695 US201514623695A US2015157875A1 US 20150157875 A1 US20150157875 A1 US 20150157875A1 US 201514623695 A US201514623695 A US 201514623695A US 2015157875 A1 US2015157875 A1 US 2015157875A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0618—Psychological treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0601—Apparatus for use inside the body
- A61N5/0603—Apparatus for use inside the body for treatment of body cavities
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
- A61K31/403—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with carbocyclic rings, e.g. carbazole
- A61K31/404—Indoles, e.g. pindolol
- A61K31/4045—Indole-alkylamines; Amides thereof, e.g. serotonin, melatonin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
- A61K38/08—Peptides having 5 to 11 amino acids
- A61K38/095—Oxytocins; Vasopressins; Related peptides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0635—Radiation therapy using light characterised by the body area to be irradiated
- A61N2005/0643—Applicators, probes irradiating specific body areas in close proximity
- A61N2005/0645—Applicators worn by the patient
- A61N2005/0647—Applicators worn by the patient the applicator adapted to be worn on the head
- A61N2005/0648—Applicators worn by the patient the applicator adapted to be worn on the head the light being directed to the eyes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0662—Visible light
- A61N2005/0663—Coloured light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2800/00—Detection or diagnosis of diseases
- G01N2800/36—Gynecology or obstetrics
- G01N2800/368—Pregnancy complicated by disease or abnormalities of pregnancy, e.g. preeclampsia, preterm labour
Definitions
- the invention relates to the field of pregnancy and, more particularly, to methods of regulating uterine.
- Parturition is a physiological process that occurs when pregnant females are in labor. It is characterized by increasingly frequent uterine contractions and cervical effacement, which ultimately leads to delivery of offspring. Parturition is a complex physiological and molecular biological process that has evolved differently in different species due to each species' unique environmental and temporal niches. Most mammals have adapted to selective pressures, such as the availability of food and prevalence of predators, by developing either a diurnal or nocturnal activity phase. Pregnant females have adapted to deliver their offspring in their den or home camp rather than in the field, which enhances their safety, security, and birth success.
- Melatonin plays a role in stimulating uterine contractions. Exposing pregnant females to light during nocturnal hours decreases their endogenous melatonin levels, which regulates nocturnal uterine contractions. The various method aspects of the invention take advantage of this phenomenon.
- a method of regulating uterine contractions comprises suppressing a nocturnal endogenous melatonin level of a pregnant female experiencing uterine contractions by exposing the pregnant female during nighttime to a light source emitting visible light.
- a method of regulating uterine contractions in a pregnant female comprises selecting a pregnant female experiencing uterine contractions, directing light from a light source emitting visible light onto the pregnant females eyes at night, the intensity of the visible light being sufficient to suppress the pregnant female's endogenous melatonin level.
- a method of regulating nocturnal uterine contractions during preterm labor comprises exposing a pregnant female experiencing preterm labor to a light source at night, the light source emitting visible light effective to suppress the pregnant female's endogenous melatonin level.
- FIG. 1 is a bar graph showing the number of contractions per hour a pregnant volunteer experienced overnight and how the number changed when a lamp was turned on for about one hour;
- FIG. 2 is a bar graph showing the number of contractions per hour another pregnant volunteer experienced overnight and how the number changed when a lamp was turned on for about one hour;
- FIG. 3 is a line graph showing composite results of the melatonin level of five pregnant volunteers when a lamp was turned on for about an hour.
- the various method aspects of the invention are directed to regulating uterine contractions by exposing pregnant females to light.
- regulating in this context means reducing the number of uterine contractions over a given time period, reducing the intensity of the uterine contractions, and or preventing uterine contractions from occurring when they might otherwise occur in the absence of light. These methods are useful, for example, to prolong pregnancy, prevent preterm birth, or, if preterm birth is inevitable, to delay the preterm birth.
- the endogenous melatonin level of a typical person rises gradually from about 9:00 p.m. to a maximum at about 2:00 a.m. After about 2:00 a.m., the endogenous melatonin level gradually decreases until morning and remains very low throughout the day. The cycle then repeats itself the following night. Because the endogenous melatonin level reaches its peak at night, this is the time period during which melatonin stimulates the most contractions. By exposing a pregnant female to a light source with sufficient intensity to suppress the endogenous melatonin level, uterine contractions are suppressed. In this context “suppressing” the endogenous melatonin level refers to either reducing the endogenous melatonin level from normal or preventing the endogenous melatonin level from rising as it normally would at night.
- a method of regulating uterine contractions involves suppressing the nocturnal endogenous melatonin level of a pregnant female experiencing uterine contractions by exposing the pregnant female during nighttime to a light source emitting visible light.
- a method of regulating uterine contractions in a pregnant female involves selecting a pregnant female experiencing uterine contractions and directing light from a light source emitting visible light onto the pregnant female's eyes at night.
- the intensity of the visible light is sufficient to suppress the pregnant female's endogenous melatonin level.
- a method of regulating nocturnal uterine contractions during preterm labor involves exposing a pregnant female experiencing preterm labor to a light source at night, where the light source emits visible light effective to suppress the pregnant female's endogenous melatonin level.
- the light source must be of sufficient intensity and color to be able to suppress the endogenous melatonin level.
- the light source was a full spectrum 10,000 lux phototherapy lamp positioned about 1 meter from the pregnant female's eyes. Although this yielded good results, other light sources are suitable for use in the methods.
- a suitable intensity range for the light source is about 1,000 to about 10,000 lux.
- the light source spectrum may be tuned to optimize the amount of melatonin suppression.
- One preferred light source predominantly emits blue light. Blue light in the wavelength range of about 450 to about 500 nm is particularly preferred.
- the pregnant female is exposed to the light during typical nocturnal or nighttime hours, preferably between about 9 p.m. to about 6 a.m.
- the pregnant female may be exposed to the light source continuously throughout the night or in smaller time increments during the night.
- the light source is a headset or set of goggles.
- the headset includes a body attached to the wearer's head for supporting a first light over the pregnant female's left eye and a second light over the pregnant female's right eye.
- the light source is adapted to emit light in discrete on/off cycles or pulses.
- the duration of the pulses and the separation between successive pulses is adjusted to obtain the desired amount of endogenous melatonin suppression.
- FIGS. 1-3 show the results of these experiments.
- FIGS. 1 and 2 show the number of contractions two different women experienced per hour.
- FIG. 3 shows the composite results of the melatonin levels of the women studied.
- the arrow in each graph represents the time at which the lamp was turned on.
- FIG. 3 shows that the women's endogenous melatonin levels gradually rose until 11:00 p.m. when the lamp was turned on and dropped by about 45% during the ⁇ 1 hr that the lamp was activated. Once the lamp was turned off, their melatonin levels gradually rose throughout the night before decreasing during the early morning hours. When combined, the results indicate that there is indeed a direct correlation between melatonin levels and uterine contractions.
- Glattre E Bjerkedal T. The 24-hour rhythmicity of birth: a population study. Acta Obstet Gynecol Scand. 1983; 62:31-36.
Abstract
A headset includes a body to be worn by a late term pregnant female. It has a light source carried by the body that directs light into the eyes of the late term pregnant human female for reducing uterine contractions occurring at night in the late term pregnant human female and suppressing the regular nocturnal endogenous melatonin secretions of the late-term pregnant human female experiencing uterine contractions. The light source directs into the eyes of the pregnant human female intermittently during the night blue light having a wavelength of about 450 to 500 nm and an intensity of about 1,000 to 10,000 lux.
Description
- This is a continuation application of Ser. No. 13/938,485 filed Jul. 10, 2013, which is a continuation-in-part of application Ser. No. 13/896,507, filed May 17, 2013, which is a continuation of application Ser. No. 12/745,819, filed Jul. 21, 2010, now U.S. Pat. No. 8,445,436, which is the national stage entry of Application No. PCT/US08/13317, filed Dec. 3, 2008, which claimed priority to provisional application Ser. No. 60/991,866, filed Dec. 3, 2007. Application Ser. No. 13/938,485 also claims priority to provisional application Ser. No. 61/740,524, filed Dec. 21, 2012, and provisional application Ser. No. 61/669,748, filed Jul. 10, 2012, the disclosures of which are hereby incorporated in their entirety.
- The invention relates to the field of pregnancy and, more particularly, to methods of regulating uterine.
- Parturition is a physiological process that occurs when pregnant females are in labor. It is characterized by increasingly frequent uterine contractions and cervical effacement, which ultimately leads to delivery of offspring. Parturition is a complex physiological and molecular biological process that has evolved differently in different species due to each species' unique environmental and temporal niches. Most mammals have adapted to selective pressures, such as the availability of food and prevalence of predators, by developing either a diurnal or nocturnal activity phase. Pregnant females have adapted to deliver their offspring in their den or home camp rather than in the field, which enhances their safety, security, and birth success.
- The selective advantage for entering parturition during the daytime or nighttime phases is reflected in the differential timing of this event among many species of nocturnal rodents and diurnal mammals, such as sheep and primates. Rats, for example, enter parturition predominantly during the day time, even when the light-dark cycles are reversed.[1-3] Similarly, golden hamsters develop strong uterine contractions and deliver their young during daytime hours.[4] Humans, on the other hand, tend to enter labor during the late nighttime and early morning hours [5-9] with parturition typically following 12 to 24 hours thereafter, at least in nulliparous women.[7] The frequency of uterine contractions in preterm women at risk for spontaneous premature delivery increases significantly at night.[10]
- In nonhuman primates, the late-term myometrial contractions and the sensitivity of the uterus to the contractile effects of oxytocin have been shown to be the highest early in the night phase.[11-13] In addition, the phasing of nocturnal parturition in nonhuman primates has been shown to also be shifted by reversal of the light/dark cycles [14], pointing to a light-sensitive clock mechanism underlying parturition. Since both humans and nonhuman primates show nocturnally peaking uterine contractions in late-term pregnancy [15-17], the intriguing question arises—what are the circadian signals that drive nocturnal uterine activity in late term human pregnancy?
- Maintenance of appropriate circadian phase in peripheral tissues requires zeitgebers (entraining cues) that are coupled with the central circadian oscillator in the brain's suprachiasmatic nuclei (SCN) via neural pathways, rhythmic endocrine, and/or metabolic signals. For many peripheral clocks, such as the liver, heart, pancreas, and so on, autonomically driven neuroendocrine output cues such as melatonin and glucocorticoids are considered to play a key role. [18] Evidence continues to accumulate showing that these two hormones have significant effects on the endogenous circadian clockwork in a variety of peripheral tissues.[19-24]
- Melatonin plays a role in stimulating uterine contractions. Exposing pregnant females to light during nocturnal hours decreases their endogenous melatonin levels, which regulates nocturnal uterine contractions. The various method aspects of the invention take advantage of this phenomenon.
- In a first method aspect of the invention, a method of regulating uterine contractions comprises suppressing a nocturnal endogenous melatonin level of a pregnant female experiencing uterine contractions by exposing the pregnant female during nighttime to a light source emitting visible light.
- In a second method aspect of the invention, a method of regulating uterine contractions in a pregnant female comprises selecting a pregnant female experiencing uterine contractions, directing light from a light source emitting visible light onto the pregnant females eyes at night, the intensity of the visible light being sufficient to suppress the pregnant female's endogenous melatonin level.
- In a third method aspect of the invention, a method of regulating nocturnal uterine contractions during preterm labor comprises exposing a pregnant female experiencing preterm labor to a light source at night, the light source emitting visible light effective to suppress the pregnant female's endogenous melatonin level.
- These and other objects, aspects, and advantages of the invention will be better appreciated in view of the following detailed description of preferred embodiments and the accompanying drawings.
-
FIG. 1 is a bar graph showing the number of contractions per hour a pregnant volunteer experienced overnight and how the number changed when a lamp was turned on for about one hour; -
FIG. 2 is a bar graph showing the number of contractions per hour another pregnant volunteer experienced overnight and how the number changed when a lamp was turned on for about one hour; and -
FIG. 3 is a line graph showing composite results of the melatonin level of five pregnant volunteers when a lamp was turned on for about an hour. - In the Summary above and in the Detailed Description of Preferred Embodiments, reference is made to particular features (including method steps) of the invention. Where a particular feature is disclosed in the context of a particular aspect or embodiment of the invention, that feature can also be used, to the extent possible, in combination with and/or in the context of other particular aspects and embodiments of the invention, and in the invention generally.
- The term “comprises” is used herein to mean that other ingredients, features, steps, etc. are optionally present. When reference is made herein to a method comprising two or more defined steps, the steps can be carried in any order or simultaneously (except where the context excludes that possibility), and the method can include one or more steps which are carried out before any of the defined steps, between two of the defined steps, or after all of the defined steps (except where the context excludes that possibility).
- In this section, the invention will be described more fully with reference to certain preferred embodiments. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will convey preferred embodiments of the invention to those skilled in the art.
- As discussed above, the various method aspects of the invention are directed to regulating uterine contractions by exposing pregnant females to light. The term “regulating,” in this context means reducing the number of uterine contractions over a given time period, reducing the intensity of the uterine contractions, and or preventing uterine contractions from occurring when they might otherwise occur in the absence of light. These methods are useful, for example, to prolong pregnancy, prevent preterm birth, or, if preterm birth is inevitable, to delay the preterm birth.
- The endogenous melatonin level of a typical person rises gradually from about 9:00 p.m. to a maximum at about 2:00 a.m. After about 2:00 a.m., the endogenous melatonin level gradually decreases until morning and remains very low throughout the day. The cycle then repeats itself the following night. Because the endogenous melatonin level reaches its peak at night, this is the time period during which melatonin stimulates the most contractions. By exposing a pregnant female to a light source with sufficient intensity to suppress the endogenous melatonin level, uterine contractions are suppressed. In this context “suppressing” the endogenous melatonin level refers to either reducing the endogenous melatonin level from normal or preventing the endogenous melatonin level from rising as it normally would at night.
- A method of regulating uterine contractions, according to a first method aspect of the invention, involves suppressing the nocturnal endogenous melatonin level of a pregnant female experiencing uterine contractions by exposing the pregnant female during nighttime to a light source emitting visible light.
- A method of regulating uterine contractions in a pregnant female, according to a second method aspect of the invention, involves selecting a pregnant female experiencing uterine contractions and directing light from a light source emitting visible light onto the pregnant female's eyes at night. The intensity of the visible light is sufficient to suppress the pregnant female's endogenous melatonin level.
- A method of regulating nocturnal uterine contractions during preterm labor, according to a third method aspect of the invention, involves exposing a pregnant female experiencing preterm labor to a light source at night, where the light source emits visible light effective to suppress the pregnant female's endogenous melatonin level.
- The light source must be of sufficient intensity and color to be able to suppress the endogenous melatonin level. In the experiment described in the Example, the light source was a full spectrum 10,000 lux phototherapy lamp positioned about 1 meter from the pregnant female's eyes. Although this yielded good results, other light sources are suitable for use in the methods. A suitable intensity range for the light source is about 1,000 to about 10,000 lux.
- The light source spectrum may be tuned to optimize the amount of melatonin suppression. One preferred light source predominantly emits blue light. Blue light in the wavelength range of about 450 to about 500 nm is particularly preferred.
- The pregnant female is exposed to the light during typical nocturnal or nighttime hours, preferably between about 9 p.m. to about 6 a.m. The pregnant female may be exposed to the light source continuously throughout the night or in smaller time increments during the night.
- In some embodiments, the light source is a headset or set of goggles. The headset includes a body attached to the wearer's head for supporting a first light over the pregnant female's left eye and a second light over the pregnant female's right eye.
- Optionally, the light source is adapted to emit light in discrete on/off cycles or pulses. The duration of the pulses and the separation between successive pulses is adjusted to obtain the desired amount of endogenous melatonin suppression.
- This section describes clinical experiments performed on actual pregnant female human patients. It is not intended to limit the scope of the invention in any way
- Pregnant female human volunteers at >38 weeks of gestation were studied to determine whether exposing them to visible light would suppress their uterine contractions during the nighttime hours and whether the suppression of uterine contractions that might result from light exposure is correlated with a decrease in their endogenous melatonin levels. In the experiments, women were studied by continuously monitoring their uterine contractions from 7:00 p.m. until 7:00 a.m. under dim light. At 11:00 p.m., each woman was exposed to a 10,000 lux, full spectrum phototherapy lamp positioned about 1 meter from the woman's eyes. After about 1 hour, the lamp was turned off. The contractions were recorded by a registered obstetric nurse. The study was performed in a hospital after receiving approval from the appropriate institutional review boards.
- The results of these experiments are shown in
FIGS. 1-3 .FIGS. 1 and 2 show the number of contractions two different women experienced per hour.FIG. 3 shows the composite results of the melatonin levels of the women studied. The arrow in each graph represents the time at which the lamp was turned on. - The results show that, when the lamp was turned on at about 11:00 p.m., the number of contractions experienced by the women per hour decreased substantially. When the lamp was turned off after about 1 hour, the number of contractions the women experienced per hour gradually rose before eventually decreasing during the early morning hours.
FIG. 3 shows that the women's endogenous melatonin levels gradually rose until 11:00 p.m. when the lamp was turned on and dropped by about 45% during the ˜1 hr that the lamp was activated. Once the lamp was turned off, their melatonin levels gradually rose throughout the night before decreasing during the early morning hours. When combined, the results indicate that there is indeed a direct correlation between melatonin levels and uterine contractions. - The results reveal that regular nocturnal contractions are suppressed by bright light exposure under these conditions. This finding supports the proposition that melatonin is a key zeitgeber, regulating the onset of human labor and parturition and that light can be used to regulate melatonin levels and, thereby, regulate uterine contractions.
- The invention has been described above with reference to preferred embodiments. Unless otherwise defined, all technical and scientific terms used herein are intended to have the same meaning as commonly understood in the art to which this invention pertains and at the time of its filing. Although various methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention, suitable methods and materials are described. However, the skilled should understand that the methods and materials used and described are examples and may not be the only ones suitable for use in the invention. Various modifications of the embodiments described here can be made without departing from the spirit and scope of the invention as described above and as defined in the appended claims.
- 1. Plaut S M, Grota L J, Ader R, Graham C W. Effects of handling and the light-dark cycle on time of parturition in the rat. Lab Anim Care. 1970; 20(3):447-453.
- 2. Boer K, Lincoln D W, Swaab D F. Effects of electrical stimulation of the neurohypophysis on labour in the rat. J Endocrinol. 1975; 65(2):163-176.
- 3. Lincoln D W, Porter D G. Timing of the photoperiod and the hour of birth in rats. Nature. 1976; 260(5554):780-781.
- 4. Siegel H I, Greenwald G S. Prepartum onset of maternal behavior in hamsters and the effects of estrogen and progesterone. Horm Behav. 1975; 6(3):237-245.
- 5. Glattre E, Bjerkedal T. The 24-hour rhythmicity of birth: a population study. Acta Obstet Gynecol Scand. 1983; 62:31-36.
- 6. Cooperstock M, England JE, Wolfe R A. Circadian incidence of labor onset hour in preterm birth and chorioamnionitis. Obstet Gynecol. 1987; 70(6):852-855.
- 7. Cagnacci A, Soldani R, Melis G B, Volpe A. Diurnal rhythms of labor and delivery in women: modulation by parity and seasons. Am J Obstet Gynecol. 1998; 178(1 pt 1):140-145.
- 8. Lindow S W, Jha R R, Thompson J W. 24-hour rhythm to the onset of preterm labour. Br J Obstet Gynecol. 2000; 107(9): 1145-1148.
- 9. Vatish M, Steer P J, Blanks A M, Hon M, Thornton S. Diurnal variation is lost in preterm deliveries before 28 weeks of gestation. Br J Obstet Gynecol. 2010; 117(6):765-767.
- 10. Iams J D, Newman R B, Thom E A, et al. Frequency of uterine contractions and the risk of spontaneous preterm delivery. N Engl J Med. 2002; 346(4):250-255.
- 11. Harbert G M Jr. Biorhythms of the pregnant uterus (Macaca mulatta). Am J Obstet Gynecol. 1977; 129(4):401-408.
- 12. Morgan M A, Silavin S L, Wentworth R A, et al. Different patterns of myometrial activity and 24-h rhythms in myometrial contractility in the gravid baboon during the second half of pregnancy. Biot Reprod. 1992; 46(6):1158-1164.
- 13. Honnebier M B O M, Myers T, Figueroa J P, Nathanielsz P W. Variations inmyometrial response to intravenous oxytocin administration at different times of the day in the pregnant rhesus monkey. Endocrinology. 1989; 125(3):1498-1503.
- 14. Ducsay C A, Yellon S M. Photoperiod regulation of uterine activity and melatonin rhythms in the pregnant rhesus macaque. Biol Reprod. 1991; 44(6):967-974.
- 15. Main D M, Grisso J A, Wold T, Snyder E S, Holmes J, Chiu G. Extended longitudinal study of uterine activity among low-risk women. Am J Obstet Gynecol. 1991; 165(5 pt 1):1317-1322.
- 16. Zahn V, Hattensperger W. Circadian rhythm of pregnancy contractions. Z Geburtshilfe Perinatol. 1993; 197(1):1-10.
- 17. Farber DM, Giussani DA, Jenkins SL, et al. Timing of the switch from myometrial contractures to contractions in late-gestation pregnant rhesus monkeys as recorded by myometrial electromyogram during spontaneous term and androstenedione-induced labor. Biol Reprod. 1997; 56(2):557-562.
- 18. Prasai M J, Pernicova I, Grant P J, Scott E M. An endocrinologist's guide to the clock. J Clin Endocrinol Metab. 2011; 96(4):913-922.
- 19. Messager S, Hazlerigg D G, Mercer J G, Morgan P J. Photoperiod differentially regulates the expression of Perl and ICER in the pars tuberalis and the suprachiasmatic nucleus of the Siberian hamster. Eur J Neurosci. 2000; 12(8):2865-2870.
- 20. von Gall C, Garabette M L, Kell C A, et al. Rhythmic gene expression in pituitary depends on heterologous sensitization by the neurohormone melatonin. Nat Neurosci. 2002; 5(3):234-238.
- 21. Imbesi M, Dirim D A, Yildiz S, et al. The melatonin receptor MT1 is required for the differential regulatory actions of melatonin on neuronal clock gene expression in striatal neurons in vitro. J Pineal Res. 2009; 46(1):87-94.
- 22. Balsalobre A. Clock genes in mammalian peripheral tissues. Cell Tissue Res. 2002; 309(1):193-199.
- 23. Dickmeis T. Glucocorticoids and the circadian clock. J Endocrinol. 2009; 200(1):3-22.
- 24. Kiessling S, Eichele G, Oster H. Adrenal glucocorticoids have a key role in circadian resynchronization in a mouse model of jet lag. J Clin Invest. 2010; 120(7):2600-2609.
Claims (8)
1. A headset comprising a body configured to be worn by a late term pregnant female, comprising a light source carried by the body that directs light into the eyes of the late term pregnant human female for reducing uterine contractions occurring at night in the late term pregnant human female and suppressing the regular nocturnal endogenous melatonin secretions of the late-term pregnant human female experiencing uterine contractions, wherein the light source directs into the eyes of the pregnant human female during the night blue light having a wavelength of about 450 to 500 nm and an intensity of about 1,000 to 10,000 lux.
2. The headset according to claim 1 , wherein the light source comprises a light source for each of the eyes.
3. The headset according to claim 1 , wherein the light source intensity is about 10,000 lux.
4. The headset according to claim 1 , wherein the light source is timed for exposure between 9 p.m. and 6 a.m.
5. A headset comprising a body configured to be worn by a late term pregnant female, comprising a light source carried by the body that directs light into the eyes of the late term pregnant human female for reducing uterine contractions occurring at night in the late term pregnant human female and suppressing the regular nocturnal endogenous melatonin secretions of the late-term pregnant human female experiencing uterine contractions, wherein the light source directs into the eyes of the pregnant human female intermittently during the night blue light having a wavelength of about 450 to 500 nm and an intensity of about 1,000 to 10,000 lux.
6. The headset according to claim 5 , wherein the light source comprises a light source for each of the eyes.
7. The headset according to claim 5 , wherein the light source intensity is about 10,000 lux.
8. The headset according to claim 5 , wherein the light source is timed for exposure between 9 p.m. and 6 a.m.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/623,695 US20150157875A1 (en) | 2007-12-03 | 2015-02-17 | Using light to regulate uterine contractions |
PCT/US2015/056904 WO2016133559A1 (en) | 2015-02-17 | 2015-10-22 | Using light to regulate uterine contractions |
US15/345,004 US10118050B2 (en) | 2007-12-03 | 2016-11-07 | Using light to regulate uterine contractions |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US99186607P | 2007-12-03 | 2007-12-03 | |
PCT/US2008/013317 WO2009073184A1 (en) | 2007-12-03 | 2008-12-03 | Compositions for inducing labor and associated methods |
US74581910A | 2010-07-21 | 2010-07-21 | |
US201261669748P | 2012-07-10 | 2012-07-10 | |
US201261740524P | 2012-12-21 | 2012-12-21 | |
US13/896,507 US20140088057A1 (en) | 2010-07-21 | 2013-05-17 | Methods of treating pre-term labor |
US13/938,485 US8992589B2 (en) | 2007-12-03 | 2013-07-10 | Using light to regulate uterine contractions |
US14/623,695 US20150157875A1 (en) | 2007-12-03 | 2015-02-17 | Using light to regulate uterine contractions |
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US8992589B2 (en) | 2007-12-03 | 2015-03-31 | The Florida State University Research Foundation, Inc. | Using light to regulate uterine contractions |
WO2012163786A1 (en) | 2011-05-27 | 2012-12-06 | University College Dublin, National University Of Ireland, Dublin | An apparatus and method for inhibiting melatonin synthesis in a horse |
WO2015073259A2 (en) * | 2013-11-13 | 2015-05-21 | Florida State University Research Foundation, Inc. | Sleep mask that incorporates light to regulate uterine contractions |
WO2016133559A1 (en) * | 2015-02-17 | 2016-08-25 | The Florida State University Research Foundation, Inc. | Using light to regulate uterine contractions |
GB201702821D0 (en) * | 2017-02-22 | 2017-04-05 | Equilume Ltd | ADSA Cow |
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US10118050B2 (en) | 2018-11-06 |
US20170050047A1 (en) | 2017-02-23 |
US20140094877A1 (en) | 2014-04-03 |
US8992589B2 (en) | 2015-03-31 |
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