1.Primary health care in a rural district, Akita prefecture.
Takeshi SUGAYA ; Masato HAYAHI ; Shunji OKUBO ; Kimio SAITO ; Kenichi HOSOYA ; Tomio MATSUOKA ; Akira KOTANAGI ; Takashi SATO ; Kenkichi TAKISAWA ; Seiko ISHINARI
Journal of the Japanese Association of Rural Medicine 1987;36(2):79-84
Investigation was made into the health care conditions in a rural district in Akita Prefecture. Topographically, the district is divided into two parts-one characterized by mountain and the other by flat terrain.
1. In remote, depopulated villages, per capita cost of public health is on the increase.
2. The number of health personell, particularly public health nurses, is not enough to carry on various health programs.
3. With the prospect of greater numbers of the aged in society, there is an urgent need for increased medical services along with the consolidation of primary health care. In order to meet the need, it is necessary to establish a regional community health system comprised of a hospital as a nucleus and neighborhood medical instituions such as clinics and health centers.
2.Health problems of women in mixed-farm households.
Takeshi SUGAYA ; Masato HAYASHI ; Shunji OKUBO ; Kimio SAITO ; Tomio MATSUOKA ; Shunichi OKABE ; Kazuhiro WATABE ; Shiro SASAKI ; Akira KOTANAGI ; Takashi SATO ; Seiko ISHINARI
Journal of the Japanese Association of Rural Medicine 1985;34(2):129-133
Investigations were made into the actual working and living conditions of adults, both men and women, in the families engaged in mixed farming.
The working conditions were analyzed according to the types of crops farmers are growing. The work study was necessary to probe into the causes of farmers' health disturbances.
A questionnaire revealed that farmers are short of sleep during the busiest season. Especially housewives are forced to cut down on their sleeping hours.
It also found that some farmers spray pesticides in quantity and expose themselves to the potentially health injurious chemicals with alarming frequency.
There was evidence to show that some ailments, notably low back pain, had been reduced due to imporovements on farmwork and working environment.
Health checkups showed that the incidences of hypercholesterolemia and obesity remain high. There was imbalance between carolic intake and consumption.
3.In Vitro Effects of Plasma Collected From Rats Administered Naftopidil on Whole Urinary Bladder Preparation Isolated From Rats
Tsuyoshi HATTORI ; Kimio SUGAYA ; Saori NISHIJIMA ; Katsumi KADEKAWA ; Tomoyuki UEDA ; Hideyuki YAMAMOTO
International Neurourology Journal 2019;23(4):277-286
PURPOSE: Alpha-1-adrenoceptor blockers (e.g., naftopidil) are prescribed for the treatment of male lower urinary tract symptoms. Although the mechanism of action of naftopidil has been studied in various organs, that in the urinary bladder remains unknown. To clarify the direct effects of naftopidil on this organ, activities were assessed in the isolated rat whole urinary bladder.METHODS: A total of 30 female rats were used. In Experiment 1, bladder activity was measured during a cumulative administration of 2.5–75μM naftopidil (n=7). In Experiment 2, rats were divided into 2 groups: control (n=10) and naftopidil (5 mg/animal/day, oral gavage, once-daily for 2 weeks) (n=13). After the treatment period, plasma was obtained from each rat. The urinary bladders were harvested from the control rats. Isovolumetric rhythmic bladder contractions were induced at above the threshold volume, and intravesical pressure was recorded. Control plasma was added to the organ bath; after subsequent wash-out, plasma collected from rats administered naftopidil was added. In Experiment 3, the plasma levels of monoamines and amino acids were quantified using the individual plasma prepared in the Experiment 2.RESULTS: Cumulative dosing with naftopidil did not change the interval between spontaneous contractions compared to the interval at baseline. After adding control plasma, the interval was shortened compared to the baseline (P=0.008). The plasma collected from rats administered naftopidil suppressed the shortening of the interval compared to the control plasma (P=0.041). Naftopidil resulted in a decrease in the level of noradrenaline (P=0.009) and an increase in that of glycine (P=0.014).CONCLUSIONS: Although naftopidil did not directly act on the interval between spontaneous contractions of the urinary bladder, the plasma collected from rats administered naftopidil, with changing levels of monoamines and amino acids, may suppressed shortening the interval.
Amino Acids
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Animals
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Baths
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Capillary Permeability
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Female
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Glycine
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Humans
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In Vitro Techniques
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Lower Urinary Tract Symptoms
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Male
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Norepinephrine
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Plasma
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Rats
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Urinary Bladder
4.Emotional Stress Facilitates Micturition Reflex: Possible Inhibition by an α₁-Adrenoceptor Blocker in the Conscious and Anesthetized State
Tsuyoshi HATTORI ; Kimio SUGAYA ; Saori NISHIJIMA ; Katsumi KADEKAWA ; Tomoyuki UEDA ; Hideyuki YAMAMOTO
International Neurourology Journal 2019;23(2):100-108
PURPOSE: To test the hypothesis that naftopidil prolongs intercontraction intervals in rats undergoing chronic stress as observed in previous animal models, voiding behavior and bladder function were measured and analyzed. METHODS: Female Sprague-Dawley rats weighing 200–230 g were exposed to repeated variate stress (RVS) for 1 week, chronic variable mild stress for 2 weeks, or simple mild stress for 1 week. Voiding behavior was assessed in metabolic cages. Voiding frequency and urine output were measured, and changes of these values were compared for the different types of stress. Micturition reflex was analyzed using unconscious cystometry. Naftopidil was administered orally at 30 mg/kg/day for 2 weeks. RESULTS: Unexpectedly, no stress-exposed rats exhibited increased micturition frequency compared to the normal nonstressed control. However, intercontraction intervals were shortened with each type of stress in the unconscious condition, especially by RVS (P<0.01). Naftopidil prolonged the shortened intervals. CONCLUSIONS: Although voiding behavior appears approximately normal in rats chronically exposed to emotional stress, internal bladder function can be affected. With anesthesia, micturition intervals were moderately shortened by emotional stress and clearly improved by naftopidil. Therefore, naftopidil appears to act at the spinal level at least.
Anesthesia
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Animals
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Female
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Humans
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Lower Urinary Tract Symptoms
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Models, Animal
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Rats
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Rats, Sprague-Dawley
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Reflex
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Stress, Psychological
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Urinary Bladder
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Urination