Discussion Topic

Submitted byCategory
From: shoprat

Date: 02-Oct-2000 at 01:48 PM EDT
Host: dyn-167-216.paonline.com /

Document Title: Barkley Lyme and female hormones. . .

Hello Ladies (and Gentlemen)

This is what I found on Dr. Marylynn Barkely of UC Davis. The first part I scanned in from my print copy of The Lyme Times. The rest I copied from previous posts on this board!!
It appears she has been on sabatical, but she is scheduled to speak in CA on Oct. 24. I hope she publishes something soon!

How female hormones may affect symptoms ~ See page 31
THE LYME TIMES
Publication of the LymeDisease Resource Center

Marylynn Barkley, MD. PhD, UC
Davis Section of Neurobiology,
Physiology & Behavior,
is conducting
a study on the relation of female
hormones to the waxing and waning of
Lyme disease symptoms. She has
observed an intensification of night
sweats (diaphoresis) in women with
Lyme disease immediately before and
during the menses. At the end of the menstrual cycle,
there is a precipitous decline in ovarian
steroid hormones which triggers the
shedding of the uterine lining. During
this period, recognition of Borrelia
antigen by the Lyme Urine Antigen
Test (LUAT) also reaches a peak, and
cytokine levels are above normal.
Night sweats are thought to reflect
activation of the immune system and
have historically been used to moitor
infections in patients with tuberculosis,
malaria, and other diseases. Dr.
Barkley discussed a patient whose
classical Lyme disease symptoms were
not recogni/.ed until 18 months after an
initial flulike illness. The patient.
initially seronegative, became positive
after an empiric trial of antibiotic
therapy. She experienced regularly
occurring night sweats which were
measured according to an objective
scale for intensity (level 4: most
intense, IOcc fluid could be wrung out
of garment, to level 1: only front of
garment was wet).
Data recorded over a two-year
period showed intensification of night
sweats (more level 4events) in a cyclic
pattern coinciding with the decline of
ovarian hormones and the onset of the
menses. Over time the intensity of the
night sweats lessened, suggesting
response to therapy.
Continuing her study with another
patient. Dr. Barkeley wanted to
discover whether there was an
objective relationship between
progestin levels and Bb antigen
activity. Using the LUAT. she
discovered an increased recognition of
Bb antigen as progesterone levels fell.
In a further study of 26 women, 21
reported night sweats, and of those
who kept records, the most intense
night sweats were in association with
menstruation. She also discovered a
significant correlation with intensifica-
tion of Lyme disease symptomatology
(arthralgia, myalgia, cognitive deficits,
fatigue) around the same time.
Dr. Barkeley concluded that there
is an interval of increased immune
activity during several days before and
after the onset of menses. She is
assuming that the night sweat activity
is proportional to the spirochete
abundance. She speculates that the
increase in immune response kills an
increased number of spirochetes during
this period, which leads to the intensi-
fied symptomatology and the increased
shedding of antigen.
One practical application of Dr.
Barkeley's work is to suggest an
optimal time for urine collection for
LUAT in menstruating women.
Collecting during the 3 days pro and
post onset of menses will maximi/e
the chance of a positive result.
Continued on back page
page 31

theLymeTmes,

Another possibility is that the timing\
of a tick bite in the menstrual cycle
may also affect the likelihood of
infection or resistance to infection,
Dr. Barkeley made the interesting
observation that there are two peak
incidences of autoimmune illnes~ in
women; one is around the time of
puberty, the other is at menopause.
Evolutionary ecologists point out that
historically, women have not experi-
enced many recurrent menstural
cycles. The fact that many modem
women now do, may impinge upon
their immune systems and compro-
mise recognition of self. Dr. Barkeley
noted that many of the women
randomly included in her study got
their Lyme disease in their late 30s or
early 40s, leading her to wonder if
their immune systems had indeed
been compromised. But that is subject
for a further study.
In the question period. Dr.
Barkcley described three young
women who had tried birth control
pills to see if they would alleviate
some of their Lyme disease symp-
toms. Their symptoms intensified so
much they were unable to continue or
the pills.


NUMBER 19 Education, Support, Advocacy. Research NOVEMBER-DECEMBER 1997




http://www.igenex.com/newsset1.htm

Presented at the 10th Annual International Conference on Lyme Borreliosis, NIH, Bethesda, Maryland
April 28-30, 1997
The Lyme Urine Antigen Test (LUAT) During Antibiotic Therapy in Women with Recurrent Menstrual Cycles
M. Barkley, MD, PhD, N Harris, PhD, and B Szantyr, MD
University of California at Davis, Davis, CA, IGeneX, Inc. Reference Laboratory, Palo Alto, CA and Lincoln, MA.
A previous study indicated that Lyme Disease (LD) symptoms were correlated with night sweat activity presumed to reflect immune system responsiveness to Borrelia burgdorferi (Bb) infection. Fluctuations in reproductive hormones appear to produce an immune response interval (IR) associated with altered Bb activity. We were interested in the possibility that monthly changes in neuroendocrine-immune ovarian activity might influence the appearance or availability of Bb antigens(s) in urine. Multiple urine samples from a single patient with LD were collected daily during 7 consecutive menstrual cycles while antibiotics were being administered. The portion of the menstrual cycle chosen for study included a 12-13 day period approximating the putative IR, including menses and the days immediately thereafter. Early morning (5-8am), mid-day (11am-3pm), evening (5-8pm) and late night (8-11pm) samples were collected and immediately transferred to BD Urine Vacutainers with preservative. Samples were
stored at -76°C. LUATs
were performed on each sample (N=285). Urinary metabolites of progesterone were measured by ELISA throughout three IR(s) selected at random. The case history is particularly interesting because initial LUAT(s), multiple PCR(s), IgG and IgM Western Blot analyses were negative following sample collection at times other than the IR. Positive LUAT(s) were obtained during the first and all but the second of the 7 IR analyzed. Menstrual cycle stage was significantly correlated with the level of Bb antigen detected in urine. Urines with a positive LUAT (P< 0.05) (N=56) were divided into Group A (collected during the late luteal phase, when urinary progesterone metabolites were highest and began to decline) (N=32) and Group B (collected on the first day of menses or thereafter, when urinary progesterone metabolites were decreased) (N=24). Excluding all negative LUAT results, mean positive LUAT values were lower prior to menses [41.94 ng/ml + 1.76(S.E.)] compared to mean positive LUAT values obtained on the first day
of menses and shortly thereafter [66.42 ng/ml + 6.36 (S.E.)]. This difference is highly significant P < 0.001 and suggests that neuroendocrine-immune-ovarian interaction may influence the availability of Bb antigen in urine. The results of this clinical study also demonstrate that collection of urine for LUAT determinations should include multiple samples obtained on the first day of menses and 3-4 days after that to optimize detection of urinary Bb antigen in women with recurrent menstrual cycles.


libryl1@aol.com Re: Periods and Lyme Disease

Date: 22-Mar-1999 at 10:01 AM EST
Host: spider-pa073.proxy.aol.com / -

Document Title: Re: Periods and Lyme Disease

Who is the researcher in CA that is looking into the effects of Lyme on the female reproductive system? This would be an interesting thing to follow--since lots of us are females experiencing these problems.
Thanks, Lisa

From: Re: Periods and Lyme Disease

Date: 22-Mar-1999 at 06:26 PM EST
Host: client-151-204-193-38.bellatlantic.net / -

Document Title: Re: Periods and Lyme Disease

The researcher is M. Barkley & she worked at
UC Davis. She had been on sabbatical & unsure if
she is back working.


From: Sarah*) AramSarah@cs.com

Date: 26-Aug-2000 at 11:07 AM EDT
Host: spider-wc024.proxy.aol.com /

2. Tick-Borne Disease Seminar
October 24, 2000 5:00 - 9:00 P.M
Sierra Nevada Memorial Hospital

Marylynn Barkley, M.D., Ph.D.
Associate Professor of Physiology
Section of Neurobiology, Physiology and Behavior
University of California, Davis
Understanding Endocrine-Immune System Interaction during Bacterial Infection
in Women: The Lyme Borreliosis Model
5:40

From: Ronda
Date: 30-Jan-2000 at 05:52 PM EST
Host: pc502.infonline.net /

Document Title: Re: Night Sweats/reference

Reading last night the info from a previous conference in CA in 1996. Found this: STEROID HORMONES,IMMUNE FUNCTION AND CLIINICAL CORRELATES OF Bb INFECTION.---Page 153 ....."Night sweats assumed to relfect immune system activity."---M. Barkley, L. Botsford, B. Summer, & J. Spearow---Unv. of CA, Davis, CA. Happy hunting. I only have the abstract.









Previous Document
Next Document
View By Date
View by Thread



The Lyme Disease Network of NJ, Inc.
43 Winton Road
East Brunswick, NJ 08816
http://www.lymenet.org/